Lightweight 14 Lb Tyvek Catalog Mailers, First Class, #13 1/2, Square Flap, Redi-strip Closure, 10 X 13, White, 100/box Panel Systems & Accessories plus it’s America’s favorite sweetener

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Lightweight 14 Lb Tyvek Catalog Mailers, First Class, #13 1/2, Square Flap, Redi-strip Closure, 10 X 13, White, 100/box Panel Systems & Accessories plus it’s America’s favorite sweetenerQuality Park Survivor Catalog Mailers are made with durable 14 lb DuPont Tyvek, which is strong enough to withstand the most grueling conditions. The material is puncture, tear and moisture resistantvirtually indestructible. Yet, it is still lightweight which can provide a savings on shipping costs. These white mailing envelopes feature an easy Flap Stik closure which requires no moisture for a secure seal and a release strip for quick, easy opening.